Rear Panel, Short-Wave and Long-Wave Hubs
Three fans, located in a customer-replaceable module at the rear panel, cool the hub. If one fan fails, the remaining two fans cool the hub temporarily, but it is important to replace the module as soon as possible (see chapter 5, Maintenance and Replacement).
Figure 3 Rear Panel
fan air vents
Caution Although the module will continue to run with two fans, a full complement of fans ensures system and data integrity.
16Rear Panel, Short-Wave and Long-Wave Hubs
